The four fundamental forces in the universe are strong nuclear force, weak nuclear force, electrostatic force, and gravity. The two forces that we feel and experience every day are:
-Gravity-Electrostatic force
Explain a situation (list liquid examples and order) in which two liquids of different densities form two layers.
The example that was given in class was the solution of oil and water. Because oil is insoluble, both liquids don’t mix with each other. Another example in everyday life is vinaigrette. This is as solution of oil and vinegar in which both liquids aren’t able to be mixed with each other. Going back to the first example, the layer order of the liquid in a beaker would be:
-Oil (on top) 0.8 g/cm3 -Water (on bottom) 1.0 g/cm3
The layer order for the vinaigrette would be:
-Olive oil 0.92 g/cm3
-Vinegar 1.01 g/cm3
Explain a situation in which two liquids of different densities form one layers.
An example of a solution containing two different liquid densities is a cocktail (as mentioned in class). When the liquids are poured into a glass, they need to be agitated in order for both liquids to reach equilibrium and form one layer.
List the density of osmium, lead, and aluminum.
-Os: 22.59 g/cm3
-Pb: 11.34 g/cm3
-Al: 2.70 g/cm3
What questions/comments do you have?
Related to the four fundamental forces in the universe, I remember from high school learning that three of the forces (strong and weak nuclear, and electrostatic forces) can be related to each other, however, gravity cannot. If physicists were able to relate gravity to the three other forces, they would be able to complete the Theory of everything, which would allow us to understand of everything in our universe and how it began.
For future reference:
-Strong nuclear force: gluons
-Weak nuclear force: bosons
-Electrostatic: photons
-Gravity: gravitons
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